It is impossible to undervolt the GPU on a Ryzen AI 9 HX 370.

When trying to enter the command sudo ryzenadj --set-coall=0xFFFDD --set-cogfx=0xFFFDD, the error appears:

"sucessfully set coall to 1048541

set_cogfx is not supported on this family"

Solution

Strix Point/Strix Halo is unsupported territory